Add last_active_at column to users page

[alison985]

#155

[alison985]

@washort This works in the UI, but the following test passes and I'm not sure how to fix it:

======================================================================
FAIL: test_get_query (tests.handlers.test_queries.TestQueryResourceGet)

Traceback (most recent call last):
File "/app/tests/handlers/test_queries.py", line 17, in test_get_query
self.assertResponseEqual(expected, rv.json)
File "/app/tests/init.py", line 115, in assertResponseEqual
self.assertResponseEqual(v, actual[k])
File "/app/tests/init.py", line 118, in assertResponseEqual
self.assertEqual(v, actual[k], "{} not equal (expected: {}, actual: {}).".format(k, v, actual[k]))
AssertionError: last_active_at not equal (expected: SELECT events.created_at AS events_created_at
FROM events
WHERE events.user_id = %(user_id_1)s ORDER BY events.created_at DESC
LIMIT %(param_1)s, actual: []).

[washort]

The error is because last_active_at is being set to a query object and the response handler is converting it to a list. Since you expect at most one result, I'd call .first() on that query and adjust the template to only expect a single value.

[alison985]

@washort Thanks. Updated.

[washort]

r+